Wan-Lin Yang

Learn More
The existing directions-of-arrival (DOAs) estimation methods for two-dimensional (2D) coherently distributed sources need one- or two-dimensional search, and the computational complexities of them are high. In addition, most of them are designed for special angular signal distribution functions. As a result, their performances will degenerate when deal with(More)
Recently, while the classical multidimensional scaling (MDS) algorithm had been claimed to be infeasible, MDS based algorithms, including modified MDS and subspace approach, have been applied to the range measurements based mobile localization. In this correspondence, we first prove that the classical MDS algorithm is feasible for the mobile localization.(More)
BACKGROUND Although the presence of an electronic health record (EHR) alone does not ensure high quality, efficient care, few studies have focused on the work of those charged with optimising use of existing EHR functionality. OBJECTIVE To examine the approaches used and challenges perceived by analysts supporting the optimisation of primary care teams'(More)
We demonstrate that the objective function of a basis selection problem in Laplacian noise environment falls into the framework of support vector regression (SVR), and, by iteratively solving a convex quadratic programming (QP) problem that guarantees a globally optimal solution, the sparse solution to the inverse problem can be found. The effectiveness of(More)
A novel noise subspace based method is applied to the minimum localization system using time-of-arrival (TOA) measurements from three base stations (BS). Since the distance measurement between the mobile station (MS) and the BS bears analogy to the multidimensional similarity (MDS) between their coordinates, we express the MS coordinate as the linear(More)
The feasibility of sparse signal reconstruction depends heavily on the inter-atom interference of redundant dictionary. In this paper, a semi-blindly weighted minimum variance distortionless response (SBWMVDR) is proposed to mitigate the inter-atom interference. Examples of direction of arrival estimation are presented to show that the orthogonal match(More)
In this paper, we investigate Taiwanese college English Language Learning (ELL) instructors’ central concerns regarding technology implementation for instructional purposes as well as the actions they take in response to top-down decisions in terms of technology implementation. The interplay of teachers’ beliefs, actions, and the context in which they are(More)